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 A140626 Primes of the form 51x^2+48xy+56y^2. 1
 59, 179, 659, 971, 1019, 1091, 1571, 1931, 1979, 2339, 2459, 2579, 2939, 3251, 3299, 3371, 3491, 3851, 4019, 4211, 4259, 4931, 5171, 5531, 5651, 6131, 6299, 6491, 6779, 6899, 7019, 7211, 7451, 7499, 7691, 8819, 9059, 9419, 9491, 10091 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Discriminant=-9120. Also primes of the form 59x^2+4xy+116y^2. In base 12, the sequence is 4E, 12E, 46E, 68E, 70E, 76E, XXE, 114E, 118E, 142E, 150E, 15XE, 184E, 1X6E, 1XXE, 1E4E, 202E, 228E, 23XE, 252E, 256E, 2X2E, 2EXE, 324E, 332E, 366E, 378E, 390E, 3E0E, 3EXE, 408E, 420E, 438E, 440E, 454E, 512E, 52XE, 554E, 55XE, 5X0E, where X is 10 and E is 11. Moreover, the discriminant is -5340. - Walter Kehowski, Jun 01 2008 LINKS Vincenzo Librandi and Ray Chandler, Table of n, a(n) for n = 1..10000 [First 1000 terms from Vincenzo Librandi] N. J. A. Sloane et al., Binary Quadratic Forms and OEIS (Index to related sequences, programs, references) MATHEMATICA Union[QuadPrimes2[51, 48, 56, 10000], QuadPrimes2[51, -48, 56, 10000]] (* see A106856 *) CROSSREFS Cf. A140633. Sequence in context: A279099 A142799 A250025 * A160681 A142857 A142064 Adjacent sequences: A140623 A140624 A140625 * A140627 A140628 A140629 KEYWORD nonn,easy AUTHOR T. D. Noe, May 19 2008 EXTENSIONS Corrected and extended b-file - Ray Chandler, Aug 02 2014 STATUS approved

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Last modified September 30 02:05 EDT 2023. Contains 365781 sequences. (Running on oeis4.)